CVE-2022-4269

Summary

A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.

Affected Software

VendorProductVersion RangeStatus
n/aLinux kernel (TC subsystem)Since upstream commit 53592b3 (v4.10-rc1)affected

Weaknesses

  • CWE-833: CWE-833

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References